13138015 has 16 divisors (see below), whose sum is σ = 17794080. Its totient is φ = 9224320.

The previous prime is 13138007. The next prime is 13138019. The reversal of 13138015 is 51083131.

It is not a de Polignac number, because 13138015 - 2³ = 13138007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13138019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2524 + ... + 5713.

It is an arithmetic number, because the mean of its divisors is an integer number (1112130).

Almost surely, 2^13138015 is an apocalyptic number.

13138015 is a deficient number, since it is larger than the sum of its proper divisors (4656065).

13138015 is a wasteful number, since it uses less digits than its factorization.

13138015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8282.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 13138015 is about 3624.6399821224. The cubic root of 13138015 is about 235.9626425116.

Subtracting 13138015 from its reverse (51083131), we obtain a triangular number (37945116 = T₈₇₁₁).

The spelling of 13138015 in words is "thirteen million, one hundred thirty-eight thousand, fifteen".